Answer:
y = 2/5x + 4
Step-by-step explanation:
Points on the line:
(0,4) and (5,6)
Slope formula:
m=(y2-y1)/(x2-x1)
m=(6-4)/(5-0)
m= 2/5
y - y1 = m(x - x1)
y - 4 = 2/5(x - 0)
y - 4 = 2/5x
y = 2/5x + 4
Answer: a. 170 b. 752
Step-by-step explanation:
The formula to find the sample size is given by :-
, where p is the prior estimate of population proportion.
= Two-tailed z-value for (significance level).
E= Margin of error .
Given : Margin of error = 0.03
Confidence level = 90%=0.90
By z-value table :
a) The president's political advisors estimated the proportion supporting the current policy to be : p= 0.06.
Required sample size :
∴ Required sample size = 170
b) If no prior estimate of population proportion is given , then we assume
p= 0.5
Required sample size :
∴ Required sample size = 752
Slope = (1+3)/(1+2)
slope = 4/3
hope that helps
Answer:
25 grams
Step-by-step explanation:
Pennies made after 1984 weigh 2.5 grams. How much would 10 pennies weigh?
From the above question:
1 penny = 2.5 grams
10 pennies = x grams
Cross Multiply
1 × x grams = 10 pennies × 2.5 grams
x grams = 25 grams.
Hence, the weight of 10 pennies is 25 grams
Answer:14
Step-by-step explanation: